Journal of Diabetes Research

Research Article

Subclinical Alterations of Cardiac Mechanics Present Early in the Course of Pediatric Type 1 Diabetes Mellitus: A Prospective Blinded Speckle Tracking Stress Echocardiography Study

Table 4

Speckle tracking derived peak systolic LV strain at rest and during stress echocardiography.
 Diabetes
()		Control
()		 value
Rest   
 Global circumferential strain rate (%)−25.5 ± 3.3−25.0 ± 3.4n.s.
  Circumferential strain rate (SAXM) (%)−26.6 ± 4.7−25.9 ± 3.9n.s.
  Circumferential strain rate (SAXB) (%)−24.4 ± 3.2−24.0 ± 4.4n.s.
 Global longitudinal strain rate (%)−20.1 ± 2.3−20.7 ± 2.5n.s.
  Longitudinal strain rate (AP4) (%)−19.9 ± 2.5−20.2 ± 3.0n.s.
  Longitudinal strain rate (AP2) (%)−20.6 ± 3.2−20.9 ± 3.1n.s.
  Longitudinal strain rate (AP3) (%)−20.3 ± 2.3−21.6 ± 2.8n.s.
Stress   
 Global circumferential strain rate (%)−24.2 ± 3.9−23.8 ± 4.1n.s.
  Circumferential strain rate (SAXM) (%)−24.6 ± 4.0−23.9 ± 4.6n.s.
  Circumferential strain rate (SAXB) (%)−23.3 ± 4.1−23.3 ± 4.3n.s.
 Global longitudinal strain rate (%)−21.6 ± 2.9−21.0 ± 2.7n.s.
  Longitudinal strain rate (AP4) (%)−21.6 ± 3.1−21.0 ± 2.3n.s.
  Longitudinal strain rate (AP2) (%)−21.8 ± 3.7−21.2 ± 0.5n.s.
  Longitudinal strain rate (AP3) (%)−21.7 ± 3.7−21.7 ± 4.4n.s.
SAXM: parasternal short axis view at the papillary muscle plane, SAXB: parasternal short axis view at the mitral valve plane, AP4: apical four-chamber view, AP2: apical two-chamber view, and AP3: apical three-chamber view; values calculated with Man-Whitney test, level of significance = 0.05.